And as He was praying: Luke shows that Jesus trusted God and depended on him through prayer (5:16; 6:12; 9:18, 28; 11:1; 22:32, 41, 44; 23:34, 46).
heaven was opened: This image was a sign of
God’s presence (Isaiah 64:1),
divine revelation (Ezekiel 1:1; John 1:51), and
the end of an age (a major period in God’s plan; Revelation 4:1; 15:5; 19:11).